108 AMERICAN COLEOPTERA. 



thorax usually has the sides more strongly arcuate in front and more 

 deeply sinuate behind, but the depth of the sinuatiou varies from 

 strongly marked in typical specimens to nearly obsolete in the form 

 known as mimus Lee. mss. As in timidum the color of the elytra 

 varies greatly. 



The names flavopictum Mots, and pidum Lee. have at different 

 times been applied to this species, while timidum Lee has been re- 

 garded as a synonym. As stated under the description of the latter 

 species, a study of LeConte's types shows that pidum, not timidum, 

 is identical with the present species. It happens, however, very for- 

 tunately that most identifications have been made with the type of 

 versicolor and not with that of timidum, so that the distribution of 

 these species, as recorded by our local lists, is in the main correct. 



It occurs throughout the greater part of this country and Canada, 

 specimens being known to me from nearly all the States and from 

 Anticosti, the Gulf of the St. Lawrence and Manitoba on the North, 

 to Florida, Texas and Southern California on the South. 



87. B. eons3rictuin Lee. — Form moderately elongate, slightly convex; 

 color a?neous or nigro-aeneous, usually tiuged with green, the elytra with a snb- 

 margiual spot near the apex and the apex testaceous, the two usually connected 

 along the margin forming an apical lunule, often also with a short transverse 

 band in front of the middle and a narrow line along the margin of the same 

 color. Head alutaceous, as wide as the thorax at apex ; palpi rufous, darker 

 towards the tip; antennse about one-half the length of the body, fuscous, the 

 basal joints paler. Prothorax cordate, about one-half wider than long, distinctly 

 narrower at base than apex, finely alutaceous; apex truncate; median line fine, 

 abbreviated at each end ; transverse impressions rather feeble; basal impressions 

 small, bistriate, the outer stria small and close to the angle ; sides with the margin 

 very narrowly reflexed, strongly arcuate nearly to base, sinuate in front of the 

 hind angles, which are subrectangular and very finely carinate. Elytra slightly 

 wider than the thorax, oblong-ovate, moderately finely striate, more finely to- 

 wards the apex ; striae punctate to behind the middle the first, second and fifth 

 entire, the others slightly abbreviated behind, the fifth grooved at tip; intervals 

 nearly flat, the third with the first dorsal puncture about one-third from base, 

 the second about one-third from apex. Beneath nearly black, shining. Legs 

 rufo-testaceous. Length .17 -.22 inch ; 4.25-5.5 mm. 



This species resembles contradum very closely, and may ultimately 

 prove to be only a variety of it. The form is, however, less elongate 

 and less convex, and the sides of the thorax are slightly sinuate in 

 front of the hind angles, which are subrectangular and very finely 

 carinate. 



Less abundant, but more widely distributed than the last named, 

 occurring over nearh' the same territory and extending as far West 

 as Nebraska, New Mexico and Texas. 



